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tif vs. jpg

why the color is different?

   
8:22 pm on Sep 16, 2008 (gmt 0)

WebmasterWorld Senior Member 5+ Year Member



So, I'm not questioning the technical difference between these two file types, but the difference in color.

I find that when I pick marketing stuff from vendors, and if they have both versions, the color is always different for the same image. TIF is much darker and has very odd colors.

I wonder why?

Thanks

9:52 pm on Sep 16, 2008 (gmt 0)

10+ Year Member



I'm sure others here will have a more complete answer, but I would guess that it stems from tif being designed for print (and thus cmyk?) while jpg is RGB.
3:30 pm on Sep 17, 2008 (gmt 0)

WebmasterWorld Senior Member rocknbil is a WebmasterWorld Top Contributor of All Time 10+ Year Member



There should be no difference between the two. If the color model for two files is RGB, saving it in one format one the other should not produce color shifts - UNLESS - the jpg compression is so low that it's causing some of the colors to shift into the compressed palette.

As mentioned, the color model will be different in CMYK because a) a portion of grays and black are moved into the black channel, depending on gray component/under color removal settings, and b)there are colors in CMYK that will not display properly in RGB, and vice-versa. This is the most likely suspect.

I have noticed that some printers like to refer to "tif" and "CMYK" as synonymous, but they are not. A tiff can be RGB or CMYK, but so can a .jpg. Neither are exclusive.